Question 1

Who was Aldo Leopold?

Accepted Answer

A) a conservationist 
B) a statistician 
C) a hunter 
D) a marine biologist 
A) a conservationist 
B) a statistician 
C) a hunter 
D) a marine biologist

Question 2

The species within a guild are unlikely to interact with one another.

Accepted Answer

A) True 
 B)False

Question 3

The form and structure of terrestrial communities are defined more by the plants than the animals present.

Accepted Answer

A) True 
 B)False

Question 4

In the following community,which serves as the keystone species?

Accepted Answer

A) killer whales 
B) sea otters 
C) sea urchins 
D) kelp bed 
A) killer whales 
B) sea otters 
C) sea urchins 
D) kelp bed

Question 5

The aphotic zone of a lake is inhabited primarily by phytoplankton.

Accepted Answer

A) True 
 B)False

Question 6

A ________ diagram plots each species in a community,beginning with the most abundant and ending with the least abundant,along the x-axis,with the corresponding value of relative abundance on the y-axis.

Accepted Answer

The answer of A ________ diagram plots each species in...

Question 7

Which score suggests a high degree of community similarity?

Accepted Answer

A) 0)9 
B) 9 
C) 90 
D) 900 
A) 0)9 
B) 9 
C) 90 
D) 900

Question 8

If you get a Simpson's index of 1,this means

Accepted Answer

A) there is only one species in the community. 
B) all species are in equal proportions. 
C) the calculation is incorrect as this is theoretically impossible. 
D) the Shannon index will equal 0. 
A) there is only one species in the community. 
B) all species are in equal proportions. 
C) the calculation is incorrect as this is theoretically impossible. 
D) the Shannon index will equal 0.

Question 9

Which elevational gradient has the most species?

Accepted Answer

A) 1920-2140 m 
B) 1680-1920 m 
C) 1370-1680 m 
D) cannot tell from figure 
A) 1920-2140 m 
B) 1680-1920 m 
C) 1370-1680 m 
D) cannot tell from figure

Question 10

Which of the following values of evenness represents a completely even distribution?

Accepted Answer

A) 100 
B) 10 
C) 1 
D) 0 
A) 100 
B) 10 
C) 1 
D) 0

Question 11

The boundaries between communities are usually sharply defined and easily discerned.

Accepted Answer

A) True 
 B)False

Question 12

Communities with low evenness will have rank-abundance curves

Accepted Answer

A) that are very steep. 
B) that are 1:1. 
C) that are very shallow. 
D) that are flat. 
A) that are very steep. 
B) that are 1:1. 
C) that are very shallow. 
D) that are flat.

Question 13

A food web is more complicated than a food chain.

Accepted Answer

A) True 
 B)False

Question 14

The removal of a keystone species from a community typically results in an increase of diversity.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following is considered a guild?

Accepted Answer

A) mammals 
B) coniferous forest 
C) top predators 
D) insect-feeding birds 
A) mammals 
B) coniferous forest 
C) top predators 
D) insect-feeding birds

Question 16

The species within a community interact with one another either directly or indirectly.

Accepted Answer

A) True 
 B)False

Question 17

In a forest community,the layer in which most photosynthesis occurs is the

Accepted Answer

A) canopy. 
B) midstory. 
C) understory. 
D) forest floor. 
A) canopy. 
B) midstory. 
C) understory. 
D) forest floor.

Question 18

The simplest measure of community structure is a count of the number of species present and is referred to as species ________.

Accepted Answer

The answer of The simplest measure of community structure is...

Question 19

The relative abundance of a tree with 100 individuals in a community of 1000 would be

Accepted Answer

A) 10. 
B) 1) 
C) 0)1. 
D) 100. 
A) 10. 
B) 1) 
C) 0)1. 
D) 100.

Question 20

In a food web diagram,________ species feed on no other species but are fed upon by others.

Accepted Answer

The answer of In a food web diagram,________ species feed...

Exam 16: Community Structure

Who was Aldo Leopold?

The species within a guild are unlikely to interact with one another.

The form and structure of terrestrial communities are defined more by the plants than the animals present.

In the following community,which serves as the keystone species?

The aphotic zone of a lake is inhabited primarily by phytoplankton.

A ________ diagram plots each species in a community,beginning with the most abundant and ending with the least abundant,along the x-axis,with the corresponding value of relative abundance on the y-axis.

Which score suggests a high degree of community similarity?

If you get a Simpson's index of 1,this means

Which elevational gradient has the most species?

Which of the following values of evenness represents a completely even distribution?

The boundaries between communities are usually sharply defined and easily discerned.

Communities with low evenness will have rank-abundance curves

A food web is more complicated than a food chain.

The removal of a keystone species from a community typically results in an increase of diversity.

Which of the following is considered a guild?

The species within a community interact with one another either directly or indirectly.

In a forest community,the layer in which most photosynthesis occurs is the

The simplest measure of community structure is a count of the number of species present and is referred to as species ________.

The relative abundance of a tree with 100 individuals in a community of 1000 would be

In a food web diagram,________ species feed on no other species but are fed upon by others.

The Nature of Ecology

Climate

The Aquatic Environment

The Terrestrial Environment

Adaptation and Natural Selection

Plant Adaptations to the Environment

Animal Adaptations to the Environment

Properties of Populations

Population Growth

Life History

Intraspecific Population Regulation

Species Interactions, population Dynamics, and Natural Selection

Interspecific Competition

Predation

Parasitism and Mutualism

Factors Influencing the Structure of Communities

Community Dynamics

Landscape Dynamics

Ecosystem Energetics

Decomposition and Nutrient Cycling

Biogeochemical Cycles

Terrestrial Ecosystems

Aquatic Ecosystems

Coastal and Wetland Ecosystems

Large-Scale Patterns of Biological Diversity

The Ecology of Climate Change

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